B3000 SE Regular Cab 4WD V6-3.0L OHV (1998)
Transmission Cooler: Testing and Inspection
Transmission Fluid Cooler - Flow Test
NOTE: The transmission linkage/cable adjustment, fluid level and line pressure must be within specifications before performing this test.
1. Remove fluid level indicator from fluid filter tube.
2. Place funnel in fluid filler tube.
3. Raise the vehicle on a hoist. And place suitable safety stands under the vehicle.
4. Remove the cooler return line (rear fitting) from the fitting on the transmission case.
5. Connect one end of a hose to the cooler return line and route other end of the hose up to a point where it can be inserted into the funnel at the fluid
filler tube.
6. Remove the safety stands and lower the vehicle. Insert end of hose into the funnel.
7. Start the engine and run it at idle with the transmission in NEUTRAL position.
8. When fluid flowing from hose is in a steady stream, a liberal amount of fluid should be observed. "Liberal" is described as about 1 liter (1 qt)
delivered in 30 seconds. If a liberal flow is observed, the test is complete.
9. If the flow is not liberal, stop the engine. Disconnect the hose from the cooler return line and connect it to the converter outline fitting (front
fitting) on the transmission case.
10. Repeat Steps 7 and 8. If flow is now approximately 1 liter (1 quart) in 30 seconds, Removal Transmission for cleaning and backflushing
procedures. If the flow is still not approximately 1 liter (1 quart) in 30 seconds, service the pump and/or torque converter.
